Clayton, NY – A California man died this afternoon after he was struck by a boat while swimming between two islands in the St. Lawrence River, New York State police said.

Here’s what police said happened.

Peter I.D. Hendley, 66, of Hayward, Ca., was swimming with a floating visual aid between the islands of Grenfell and Murray in the Town of Clayton when he was struck at 2:30 p.m. by a boat operated by Thomas P. Kernan of Webster.

Hendley was taken to the main dock at Thousand Island Park on Wellesley Island and taken to Samaritan Medical Center by Tiers Ambulance. He was pronounced dead at the hospital.

The state police’s investigation showed that due to the steady winds, white caps and the glare of the sun, Kernan didn’t see the swimmer and struck him with the boat.

There are no criminal charges in the case.

The U.S. Coast Guard and the New York State Park Police aided in the case.